Is it just marketing or is there an actual structural difference?
In: 807
Generally “space grade aluminum” is the 6061 alloy but I don’t really see a drastic benefit to the added cost using that alloy over using mild steel for a dog crate would give you other than being slightly lighter.
You can look at the characteristics of the different aluminum alloys to see the benefit of it in the link below.
https://www.fastradius.com/resources/decoding-aluminum-alloy-numbering/
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